Thermodynamic Analysis of TiN Precipitation in SWRH92A High Carbon Tire Cord Steel Under the Influence of Solute Micro-segregations During Solidification

2021 ◽  
Author(s):  
Peng Wang ◽  
Chengzhi Li ◽  
Lu Wang ◽  
Juhua Zhang ◽  
Zhengliang Xue
Keyword(s):  
Thermodynamic Analysis ◽  
Tire Cord ◽  
High Carbon ◽  
Tire Cord Steel

scholarly journals Thermodynamic analysis of precipitation behavior of Ti-bearing inclusions in SWRH 92A tire cord steel

2019 ◽  
Vol 14 ◽  
pp. 102428 ◽  
Author(s):  
Lu Wang ◽  
Zheng-Liang Xue ◽  
Hang-Yu Zhu ◽  
Jia-Liu Lei
Keyword(s):  
Thermodynamic Analysis ◽  
Tire Cord ◽  
Precipitation Behavior ◽  
Tire Cord Steel

Composition Control of CaO-MgO-Al2O3-SiO2Inclusions in Tire Cord Steel - a Thermodynamic Analysis

2008 ◽  
Vol 79 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Haitao Wang ◽  
Fuming Wang ◽  
Zhongbo Xu ◽  
Liling Jin
Keyword(s):  
Thermodynamic Analysis ◽  
Tire Cord ◽  
Composition Control ◽  
Tire Cord Steel

Top slag refining for inclusion composition transform control in tire cord steel

2012 ◽  
Vol 19 (6) ◽  
pp. 490-498 ◽  
Author(s):  
Shu-hao Chen ◽  
Min Jiang ◽  
Xiao-fei He ◽  
Xin-hua Wang
Keyword(s):  
Tire Cord ◽  
Inclusion Composition ◽  
Slag Refining ◽  
Tire Cord Steel ◽  
Top Slag

Effect of Boron on Morphology of Inclusions in Tire Cord Steel

2012 ◽  
Vol 19 (4) ◽  
pp. 22-27 ◽  
Author(s):  
Huai-zhou Cui ◽  
Wei-qing Chen
Keyword(s):  
Tire Cord ◽  
Tire Cord Steel

The [Ti] Content Control of the Tire Cord Steel 82A

2013 ◽  
Vol 785-786 ◽  
pp. 3-7
Author(s):  
Peng Fei Zhang ◽  
Zheng Liang Xue ◽  
Feng Zou ◽  
Rui Xiong ◽  
Ting Ting Zhu ◽  
...  
Keyword(s):  
Production Process ◽  
Converter Slag ◽  
Titanium Content ◽  
Quality Level ◽  
Tire Cord ◽  
Related Theory ◽  
End Products ◽  
Tire Cord Steel ◽  
Ti Content

Based on the characteristics of the production process and quality level of the cord steel 82A, this paper focus on the analysis of the converter terminal temperature, terminal oxidability and the converter slag on the influence of the content of titanium in steel, which combined the oxidation removing related theory of titanium element in steel, and puts forward effective measures of ultralow titanium content controlling in steel, and obvious effects have been obtained in the production: the average [Ti] content is 4.9ppm in the end products, in which the proportion of less than 5ppm is above 90%.

scholarly journals Titanium Distribution Ratio Model of Ladle Furnace Slags for Tire Cord Steel Production Based on the Ion–Molecule Coexistence Theory at 1853 K

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 788
Author(s):  
Jialiu Lei ◽  
Dongnan Zhao ◽  
Wei Feng ◽  
Zhengliang Xue
Keyword(s):  
Distribution Ratio ◽  
Steel Production ◽  
High Strength ◽  
Titanium Content ◽  
Ladle Furnace ◽  
Tire Cord ◽  
Coexistence Theory ◽  
Calculation Results ◽  
Tire Cord Steel ◽  
Lf Refining

High-strength tire cord steel is mainly used in radial ply tires, but the presence of brittle Ti inclusions can cause failure of the wires and jeopardize their performance in production. In order to control the titanium content during steel production, a thermodynamic model for predicting the titanium distribution ratio between CaO–SiO2–Al2O3–MgO–FeO–MnO–TiO2 slags during the ladle furnace (LF) refining process at 1853 K has been established based on the ion–molecule coexistence theory (IMCT), combined with industrial measurements, and the effect of basicity on the titanium distribution ratio was discussed. The results showed that the titanium distribution ratio predicted by the developed IMCT exhibited a dependable agreement with the measurements, and the optical basicity is suggested to reflect the correlation between basicity and the titanium distribution ratio. Furthermore, quantitative titanium distribution ratios of TiO2, CaO·TiO2, MgO·TiO2, FeO·TiO2, and MnO·TiO2 were acquired by the IMCT model, respectively. Calculation results revealed that the structural unit CaO plays a pivotal role in the slags in the de-titanium process.

scholarly journals Volatilization Behavior of Manganese from Molten Steel with Different Alloying Methods in Vacuum

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1348
Author(s):  
Jianhua Chu ◽  
Yanping Bao
Keyword(s):  
Vapor Pressure ◽  
Carbon Content ◽  
Thermodynamic Analysis ◽  
Molten Steel ◽  
Manganese Steel ◽  
Volatile Fraction ◽  
High Carbon ◽  
Partial Vapor Pressure ◽  
High Carbon Ferromanganese ◽  
Volatilization Behavior

The volatilization loss of manganese during the vacuum smelting process is one of the key factors that determines the manufacturing cost and quality of manganese steel. In this study, the laboratory experiments and thermodynamic calculations were performed to investigate volatilization behavior of manganese from molten steels with different alloying methods in vacuum process. Based on the thermodynamic analysis, with the increase of manganese content, the partial vapor pressure of the manganese component increased, resulting in manganese being easily volatilized from molten steel. The carbon content in the steel shows an evident influence on partial vapor pressure of manganese component, and a higher carbon content in steel leads to a lower partial vapor pressure of manganese, but it not influenced by the silicon content. Compared with the alloying method of high carbon ferromanganese, the volatilization loss of manganese in the alloying method of silicon manganese presents faster decay, agreeing well with the thermodynamic analysis. Besides, the volatile fraction generated in the alloying method of high-carbon ferromanganese is composed of a large amount of MnO nanorods with a lateral length approximately 500 nm and a small number of Mn3O4/Mn nanoparticles with a diameter less than 500 nm. Additionally, the volatile fraction generated in the alloying method of silicon manganese shows Mn3O4 nanoparticles as the main phase. It can be inferred that the existence of the manganese oxide phase is attributed to the high chemical activity of nanoscale particles within air.

Research on Transformation Mechanism of Oxide Inclusion in Tire Cord Steel

2014 ◽  
Vol 67 (6) ◽  
pp. 919-926 ◽  
Author(s):  
Xiaofei He ◽  
Shuhao Chen ◽  
Xinhua Wang ◽  
Min Jiang
Keyword(s):  
Oxide Inclusion ◽  
Tire Cord ◽  
Transformation Mechanism ◽  
Tire Cord Steel

scholarly journals Thermodynamic modeling of deoxidation products and inclusion chemistry in Mn/Si killed tire-cord steel

2012 ◽  
Vol 48 (1) ◽  
pp. 37-43 ◽  
Author(s):  
A.D. Prasad ◽  
S.R. Sankaranarayanan
Keyword(s):  
Free Energy ◽  
Thermodynamic Modeling ◽  
Slag Phase ◽  
Slag System ◽  
Al2o3 Content ◽  
Tire Cord ◽  
Oxide Systems ◽  
Tire Cord Steel ◽  
Inclusion Chemistry ◽  
The Stability

The present work deals with thermodynamic modeling of oxide systems, in the context of slags and inclusions in steelmaking. The work has emphasis on oxides encountered during the production of tire - cord steel. Control of inclusion chemistry and variation in eutectic temperature and eutectic composition of MnOAl2O3- SiO2 slag system have been studied, using Thermo-CalcR software. Relatively low liquidus temperatures are obtained for ratio of MnO/SiO2 = 0.5 - 1.5 and Al2O3 content from 10 - 20 mass%. It has been observed that the addition of Alumina leads to further increase in the liquidus temperature. The stability of inclusions is analyzed in terms of free energy values of related slag systems; and an appropriate minimum of Gibbs free energy value of slag phase observed at around 50 ppm of Oxygen. The observations could not be verified using thermodynamic experiments, but have been compared with findings in the open literature.

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